Binary Ionic Compounds- Note review

How many elements are in a binary compound?

When naming or writing an ionic compound, the first element is a __________ and the second element is a _______________

• metal, metal

• metal, nonmetal

• nonmental, nonmetal

• nonmetal, metal

Answer explanation

Ionics ALWAYS are listed with metal than nonmetal

Criss-crossing the charges to determine the subscripts of the element result in

• a positively charged compound

• a neutral compound

• a negatively charged compound

The charges on the cation and charges on the anion get ____________ to become subscripts of the other element

What is the correct formula for barium chloride

• BaCl₃

• BaCl

• Ba₂Cl

• BaCl₂

Answer explanation

The charge of Ba+2 becomes the subscript of chlorine and the charge Cl-1 of becomes the subscript of barium

What is the FORMULA for...
calcium arsenide

• Ca₃As₂
• CaAs₂
• Ca₃As
• Ca₃Ar₂

Answer explanation

The charge of Ca+2 becomes the subscript of arsenic and the charge As-3 of becomes the subscript of calcium

Tags

NGSS.MS-PS1-1

What is the FORMULA for....
beryllium iodide

• Be₂I
• BeI
• BeI₂
• BI₂

Answer explanation

The charge of Be+2 becomes the subscript of iodine and the charge I-1 of becomes the subscript of Be

Tags

NGSS.MS-PS1-1

This type of element's name in an ionic compound does not change

A nonmetal element's name ending gets dropped and you add "- ___"

What is the name of of Ba₃N₂?

Answer explanation

the metal name does not change, the nonmetal's ending gets dropped and -ide is added